Some weird sounds coming out of pipe organ with half-drawn stops played with your elbows and fists, some squiggles on paper which actually take 30 seconds to draw and a week to think about, some words which meaning and direction can only be revealed if the reader reaches a certain state of mind, a drama performance where people swear on stage (or worse).
Is it art or is it all gibberish?
I think it depends on the point of view of both the creator and the receiver.
If it's generous, risky, and, disruptive - it might be art. If it touches someone - it might be art. If it changes someone for the better - it's definitely art.
The question is - do you care enough to create it?
Even better - do you care enough to receive sharp criticism for it?